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Cornerstone · Grades 3–5 Keystones #1 16 November 2015 Skills week 1 of 7
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Five GCSE retrieval questions · 16 November 2015 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 4⁄7 + 3⁄5

    Answer: 41⁄35
  2. 2. Algebra Two-step equations

    Solve: 2x - 12 = 14

    Answer: x = 13
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 5cm and b = 6cm. Give your answer to 2 decimal places

    Answer: 7.81cm
  4. 4. Ratio Sharing in a ratio

    Divide 190 in the ratio 2:1:2

    Answer: 76, 38 and 76
  5. 5. Statistics Mean

    Find the mean of: 7, 19, 16

    Answer: 14

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